21051489 is an odd 8-digits composite number following 21051488
and preceding 21051490 . In scientific notation, it is written as 2.1051489 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 14034324 positive integers (up to 21051489) that are relatively prime to 21051489.
21051489 has 4 divisors, whose sum is 28068656
The reverse of 21051489 is 98415012
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million fifty-one thousand four hundred eighty-nine
Scientific notation
2.1051489 × 10^7
Engineering notation
2.1051489 × 10^6
Prime Factorization
3 × 7017163
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21051489
Product of the distinct prime numbers
The prime factorization of 21051489 is 3 × 7017163.
Since it has a total of 2 prime factors.
5 , 9 , 39 , 23 , 903 , 770 , 3948 , 413 , 82701 , 56304 , 68548 , 333618 , 7684074 , 5279942 , 2907836 , 98992905 , 165766761 , 565207707 , 9066036210 , 5854933437
n×2
42102978
n×3
63154467
n×4
84205956
n×5
105257445
n÷2
10525744.5
n÷3
7017163
n÷3
5262872.25
n÷5
4210297.8
n2
443165189117121
n3
9.329287103882E+21
n4
1.9639538484521E+29
n5
4.1344152837198E+36
2 √n
4588.1901660677
3 √n
276.11771653636
4 √n
67.73618062799
5 √n
29.151208513802
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21051488
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21051489 can be divided by 4 positive divisors.
The sum of these divisors (counting 21051489) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000010011100001100001
3
Ternary
1110121112012210
4
Quaternary
1100103201201
5
Quinary
20342121424
6
Senary
2031112333
8
Octal
120234141
10
Decimal
21051489
12
Duodecimal
70726a9
16
Hexadecimal
1413861
20
Vigesimal
6bb8e9
36
Base36
cj7fl
md5
81f8c843cf33adff313f93fc148eaa52
sha1
12e0b01d1be47f84311fdb268fca39813ae1fae0
sha256
8fdc4e1f4dda8657e97079996bb865b3695d4d22b41cd2e51908cac4c27bfcea
sha512
5d2015c49387597590cf089ce58bd204f5dc64616cb3686ee1eec46b0eccfb4cd4ded3591fc1f0d61c2f1a2cd444bbfe3b926778471fe04dbbd6217e4aba421b
ripemd-160
e7a67dbe7f36146fc8a391eba09310f17bf3b905
Diameter
42102978
Circumference
132270406.37905
Area
1.3922445024571E+15
Volume
3.9078426438381E+22
Surface area
5.5689780098283E+15
Circumference
132270406.37905
Perimeter
84205956
Area
443165189117121
Diagonal
29771301.251948
Surface area
2658991134702726
Volume
9.329287103882E+21
Space diagonal
36462248.522977
Perimeter
63154467
Area
1.9189615592418E+14
Altitude
18231124.261489
Surface area
1.9189615592418E+14
Volume
1.0994670291319E+21
Height
9923767.0839827